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Dmitrij [34]
3 years ago
5

Y=x???need answers and an explanation

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0
Y= 2
every time y goes up it goes up by 2

-1+2=1
1+2=3
3+2=5
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A survey was taken among female and male voters and which candidates they voted for.
Ghella [55]

Answer: its 48% i took the test

Step-by-step explanation:

8 0
3 years ago
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A set of twins, Andrea and Courtney, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a spaceship th
SVETLANKA909090 [29]

The initial age of 10 years and the spaceship speed of 0.60•c, gives the Andrea's age at the end of the trip as 18 years.

<h3>How can Andrea's new age be calculated?</h3>

The time dilation using the Lorentz transformation formula is presented as follows;

t' =  \frac{t}{ \sqrt{1 -  \frac{ {v}^{2} }{ {c}^{2} } } }

From the question, we have;

The spaceship's speed, <em>v</em> = 0.6•c

∆t = Rest frame, Courtney's time, change = 10 years

Therefore;

\delta t' =\delta t \times  \sqrt{1 -  \frac{ {(0.6 \cdot c)}^{2} }{ {c}^{2} } } = 8

The time that elapses as measured by Andrea = 8 years

Andrea's age, <em>A</em>, at the end of the trip is therefore;

A = 10 years + 8 years = 18 years

Learn more about the Lorentz transformation formula here:

brainly.com/question/15544452

#SPJ1

3 0
2 years ago
I have a goal of getting exactly $100. But I have to pay a tax of 10%. How much money do I need to get in order to have exactly
frosja888 [35]
<h3>Answer:  $111.11</h3>

=======================================================

Explanation:

Let's say you earn x dollars.

You pay 10% tax on that, which means you pay 0.10x dollars.

This would drop to x-0.10x = 0.90x which is the amount earned after tax.

So you pay 10% of what you earn, and keep 90% of the rest.

Set this equal to the target $100 you want and solve for x.

0.90x = 100

x = 100/0.90

x = 111.11

Notice that 10% of this is 0.10*x = 0.10*111.11 = 1.11 when rounding to the nearest penny. So you'll pay $1.11 in tax. Therefore, you'd have x-0.10x = 111.11 - 1.11 = 100 left over. So the answer checks out.

7 0
3 years ago
The perimeter of the rectangle below is 176 units. Find the length of side QR.
Irina18 [472]

Answer:

QR = 48 units

Step-by-step explanation:

in a rectangle, opposite sides are equal

so QR = PS and QP = RS

also we know that the sum of all sides is the perimeter, which is 176

we can set up this equation:

2(5z - 2) + 2(4z) = 176

10z - 4 + 8z = 176

18z - 4 = 176

18z = 180

z = 10

QR = 5z - 2

we can substitute 10 for 'z' to get:

5(10) - 2 = 50 - 2 or 48

Check:

2(48) + 2(40) = 176

96 + 80 = 176

176 = 176

4 0
3 years ago
Find the solution set for 8x - 3 = 2(x - 1/2)​
KiRa [710]

Answer:

x = 1/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

8x - 3 = 2(x - 1/2)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distributive 2:                              8x - 3 = 2x - 1
  2. Subtract 2x on both sides:         6x - 3 = -1
  3. Add 3 to both sides:                   6x = 2
  4. Divide 6 on both sides:              x = 1/3
4 0
3 years ago
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